Display panel or portion thereof with graphical user interface



FIG. 1 is a front view of a display panel or portion thereof withgraphical user interface showing our new design; and,

FIG. 2 is a front view thereof showing environmental matter.

The dot-dash broken lines in FIG. 1 illustrate a display panel orportion thereof and form no part of the claimed design. The dash-dashbroken lines on the display panel represent portions of the graphicaluser interface that form no part of the claimed design. The dot-dashbroken lines in FIG. 2 showing a display device illustrate environmentalmatter that forms no part of the claimed design.

CLAIM The ornamental design for a display panel or portion thereof withgraphical user interface, as shown and described.